Specifications

ManualsBrandsAprilaire ManualsHousehold Appliances1180

Steam Humidifier

Models 1150, 1160, and 1180

Installation, Operation, and Maintenance Manual

Humidifier

READ AND SAVE THESE INSTRUCTIONS

Summary of content (48 pages)

PAGE 1
Humidifier Steam Humidifier Models 1150, 1160, and 1180 Installation, Operation, and Maintenance Manual READ AND SAVE THESE INSTRUCTIONS
PAGE 2
TABLE OF CONTENTS PRODUCT OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Materials Provided and Not Provided . . . . . . . . . . . . . . . . . . 3 Electrical Specifications, Capacities and Weights . . . . . . . . 4 OPERATION Start-up Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 MAINTENANCE Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Inspect and Service the Humidifier . . . . . . . . . . . . . . . . . . .
PAGE 3
PRODUCT OVERVIEW Aprilaire Steam Humidifiers create steam by boiling water inside a steam chamber. This is accomplished by the transfer of energy from electric heating elements to the water inside the chamber. A three-level water probe is used to determine when to turn on and off a water fill valve in order to bring water into the chamber. Once the chamber is full and there is a call for humidity from the Automatic Steam Humidifier Control, the heating elements will be energized causing the water to boil.
PAGE 4
FIGURE 1 – Product Overview Distribution Tube Flexible steam hose (1½" in Models 1150 and 1160, 2" in Model 1180) Duct Control wiring knockout Power wiring knockout Electrical controls area Internal controller board Field wiring terminal block Display panel Fill Valve ¼” (DN8) compression fitting Electrical power area Immersion heaters (1 in Model 1150, 2 in Model 1160, and 3 in Model 1180) ¾” (DN20) copper overflow and drain Cover/shroud Removable steam chamber OM-4051 TABLE 1 – Electrical Speci
PAGE 5
FIGURE 2 – Dimensions (pertains to Models 1150, 1160 and 1180) Power wire knockout TOP VIEW 11.89” (302 mm) 6.50” (165 mm) 5.50” (140 mm) 3.09” (78 mm) 1.00” (25 mm) Control wire knockout Steam outlet 24.06” (611 mm) LEFT SIDE VIEW Venting FRONT VIEW 18.93” (481 mm) 9.99” (254 mm) Models 1150/1160 BOTTOM VIEW 15.6” (396 mm) Model 1180 24.06” (611 mm) Chamber fill Chamber drain 0.83” (21 mm) 1.37” (35 mm) 3.06” (78 mm) 1.
PAGE 6
FIGURE 3 – Mounting Hole Locations BACKVIEW 0.75" (19.0mm) 4.00" 16.00" (406.4mm) Keyhole for 3/8" diameter fasteners (2) 90-914 FIGURE 4 – Distribution Tube Dimensions MODEL 1150 MODEL 1160 14" Tube length 1.50 (TYP) 1.
PAGE 7
OVERVIEW OF HUMIDIFIER OPERATION INTERNAL CONTROLLER - FEATURES OF OPERATIONS The internal controller within the humidifier cabinet responds to external inputs (e.g., humidistat and airflow proving switch) and internal inputs (e.g., water level probe inside the steam chamber) to provide: • Relative humidity (RH) control – Model 1150: With an on-off demand signal, the controller maintains RH within 5% to 7% of set point.
PAGE 8
SEQUENCE OF OPERATIONS Note: Sequence is for normal operation, starting with an empty Steam Chamber. Model 1150 Humidifier is connected to: 240 VAC, single phase input power; Model 57 on/off Automatic Steam Humidifier Control (ASHC); Airflow Proving Switch and High Humidity Limit Switch. Water supply is turned on, steam distribution and drain connections are made. TABLE 2 – Sequence of operation for Model 1150 Operation 8 Expected Results Humidiﬁer power turned on.
PAGE 9
SEQUENCE OF OPERATIONS Note: Sequence is for normal operation, starting with an empty Steam Chamber. Model 1160 humidifier is connected to: 240 VAC, single phase input power; Model 57 modulating Automatic Steam Humidifier Control (ASHC); Airflow Proving Switch and High Humidity Limit Switch. Water supply is turned on, steam distribution and drain connections are made.
PAGE 10
TABLE 3 – Sequence of operation for Model 1160 and 1180 (continued) Operation Expected Results If demand for humidity prevents the chamber from cooling, a forced Autodrain sequence is initiated. During a forced Autodrain sequence, the humidiﬁer will not generate steam, even if there is a call for humidity. • The humidiﬁer will go into a forced cool-down period, which lasts about 6 hours for Model 1160 and 7 hours for Model 1180. During that time, all the LEDs will blink in sequence.
PAGE 11
TABLE 4 – Display Panel Light Indications Indicator light(s) Status Description All Blinking sequentially The humidiﬁer is in a forced cool-down period prior to a required automatic drain sequence. Normal operation. On Power is on. Normal operation. Slow blinking (1/sec.) The electronic water level probe needs cleaning. Fast blinking (10/sec.) Probe logic fault. See Troubleshooting section. On The humidiﬁer is draining. Normal operation.
PAGE 12
INSTALLATION FIGURE 7 – Model 1150 Wiring Diagram APRILAIRE STEAM HUMIDIFIER MODEL 1150 SINGLE HEATER WIRING DIAGRAM ON/OFF CONFIGURATION AA-LW420-1 12
PAGE 13
FIGURE 8 – Model 1160 Wiring Diagram APRILAIRE STEAM HUMIDIFIER MODEL 1160 DUAL HEATER WIRING DIAGRAM MODULATING CONFIGURATION AA-LW420-2 13
PAGE 14
FIGURE 9 – Model 1180 Wiring Diagram APRILAIRE STEAM HUMIDIFIER MODEL 1180 THREE HEATER WIRING DIAGRAM MODULATING CONFIGURATION AA-LW420-3 14
PAGE 15
SETTING SLIDE SWITCHES IMPORTANT: Slide switch on-off positions 1 through 16 are preset at the factory. These settings are determined by output capacity, water type, and demand signal type. Changing these settings will affect humidifier operation. Change on-off positions only per the instructions in this manual or as instructed by Aprilaire technical support staff. On the internal controller inside the humidifier, there are two banks of slide switches.
PAGE 16
TABLE 5 – Factory Slide Switch Settings Slide switch S1 Position Slide switch S2 Factory setting My setting Position Factory setting My setting 1 Off 9 Off 2 Off 10 See Table 6 Do not change. 3 Off 11 Off Do not change. 4 Off 12 Off Do not change. 5 See Table 6 Do not change. 13 Off Do not change. 6 Off Do not change. 14 Off Do not change. 7 Off Do not change. 15 Off Do not change. 8 Off Do not change. 16 Off Do not change.
PAGE 17
CHOOSING A LOCATION FOR HUMIDIFIER COMPONENTS Before proceeding with the installation, you must first determine where the steam distribution tube will be installed as well as the humidifier itself. Steam Distribution Tube and Controls Location Since this dictates the rest of the installation, first determine where the steam distribution tube will be mounted in the ductwork of the HVAC system. Refer to Figure 12 for split system installations and Figure 13 for rooftop unit installations.
PAGE 18
DISTRIBUTION TUBE AND CONTROL DEVICES LOCATION OPTIONS FIGURE 12 – Recommended Installation Locations, Split System Application �� CHOOSING A DISTRIBUTION TUBE LOCATION When install
PAGE 19
FIGURE 13 – Placing a Distribution Assembly in a Rooftop Air Handler Application �� CHOOSING A DISTRIBUTION TUBE LOCATION When install
PAGE 20
FIGURE 14 – Steam Humidifier Wiring and Utility Diagram Automatic Steam Humidifier Control INPUT POWER with Ground. Refer to wiring diagram.
PAGE 21
FIGURE 15 – Steam Humidifier Wiring and Utility Diagram with Blower Control by Humidifier Automatic Steam Humidifier Control Connections required for Blower Control by Steam Humidifier Thermostat R INPUT POWER with Ground. Refer to wiring diagram.
PAGE 22
DISTRIBUTION TUBE INSTALLATION After the location for the distribution tube has been identified, follow the steps below and refer to Figure 16 to install the distribution tube in the duct. 1. Cut or drill a 1 5/8” diameter opening in the duct for 1150/1160; 2 1/8” for 1180. 2. Drill a 3/8” hole in the opposite surface of the duct so that the distribution tube has a 2”/ft. (15%) pitch, sloping back towards the humidifier.
PAGE 23
FIGURE 16 – Distribution Tube Installation Duct Steam hose; do not exceed 10’ (3 m) in length. Use copper tube if additional length is required. Humidifier Distribution tube 4.5” minimum from tube to duct ceiling Hose pitch: 2”/ft (15%) Secure and seal face plates Mounting nut 3/8” - 16 Tube pitch: 2”/ft (15%) OM-4008 FIGURE 17 Distribution tube 4.
PAGE 24
MOUNTING THE HUMIDIFIER Mounting the humidifier on the wall When mounting on a wood stud wall (studs 16” [406 mm] on center), locate studs and position lag bolts in place so that each of the bolts centers on a stud. Mark hole locations and predrill ¼” (6 mm) diameter pilot holes. Secure cabinet to wall with lag bolts provided. When mounting on a metal stud wall, locate the studs (16” [406 mm] on center) and drill a 3/8” (10 mm) hole through the studs and wall.
PAGE 25
FIELD WIRING Humidifier field wiring All wiring must be in accordance with all governing codes and with the humidifier wiring diagram. Wiring diagrams are on pages 12, 13 and 14 in this manual and the wiring diagram for your humidifier model is located inside the removable shroud. Power supply wiring must be rated for 221°F (105°C). The maximum ambient temperature is 80°F (27°C). Field wiring connections and requirements • Conduit knockouts are provided on the top of the cabinet.
PAGE 26
WARNING Line voltage may cause serious injury or death from electrical shock. Shut off power at main breaker before installing supply wiring for humidifier. WARNING Failure to properly ground unit may result in property damage due to fire, or serious injury or death from electrical shock. LINE POWER The 1150/1160 humidifier is designed for 240 VAC, single phase, 50/60 Hz input power. The Model 1150 requires a 25 amp (minimum) breaker while the Model 1160 requires a 45 amp (minimum) breaker.
PAGE 27
Control input wiring The internal controller offers four input control types, which are field adjustable. The factory default control type for Model 1150 is the Automatic Steam Humidifier Control, on-off configuration as shown in Figure 20. The factory default control type for Model 1160/1180 is the Automatic Steam Humidifier Control, modulating configuration as shown in Figure 21. IMPORTANT: For Model 1150 on/off control, verify that the shunt on the JP2 jumper is placed over the 2 & 3 position.
PAGE 28
FIGURE 22 – Model 1160/1180: Input Wiring for Optional 0-10 VDC Signal by Others IMPORTANT: LW420 controller board slide switch S1 positions 1 and 2 are OFF - SIGNAL BY OTHERS 0-10 VDC + HIGH HUMIDITY LIMIT SWITCH 2-wire shielded cable with ground 2-wire shielded cable with ground AIRFLOW PROVING SWITCH 2 Enable 30 1 +24VDC C Common STEAM HUMIDIFIER FIELD WIRING TERMINAL BLOCK Command signal 90-918 FIGURE 23 – Model 1160/1180: Input Wiring for Optional 4-20 mA Signal by Others IMPORTANT: LW42
PAGE 29
AIRFLOW PROVING SWITCH INSTALLATION INSTRUCTIONS Description: The airflow proving switch is a safety device that will prevent the humidifier from producing steam when there is no airflow present in the HVAC system. The switch is a pressure differential measuring device that determines if there is airflow present based on the pressure differential between the HVAC system and atmosphere. The switch contains a diaphragm, calibration spring, and a snap acting SPDT switch. See Figure 24 for details.
PAGE 30
The final connection size is 1” (DN25) hose or ¾” (DN20) copper for the chamber drain. Do not reduce this connection size. (See Figures 25 and 26 for proper drain piping configurations.) A 12” (305 mm) piece of 1” (DN25) hose is provided to function as the flexible connection from the drain valve to the field installed drain plumbing. The flexible connection provides a disconnect point so that the chamber can be removed for cleaning. (See Figure 25).
PAGE 31
FIGURE 26 – Field Piping Overview Showing Hard Pipe Drain Connections Steam hose (maximum run 10’ [3 m]) Water supply line Shock arrester recommended to reduce water hammer Union by installer ¼” (DN8) compression fitting on fill valve connection to water supply line; water pressure must be between 25 psi and 80 psi (175 kPa and 550 kPa); water conductivity minimum 100 µS/cm; fill valve has an integral strainer Install plumb ¾” (DN20) copper chamber drain and overflow piping, rated for 212°F (100°C).
PAGE 32
DISTRIBUTION DRIP TEE INSTALLATION If the humidifier cannot be mounted below the steam distribution tube, such that there is a minimum 2”/ft (15%) pitch along the entire hose length, a drip tee as shown below must be installed. Failure to follow the recommendations on this page, when the humidifier is mounted higher than the distribution tube, can result in excessive back pressures on the humidifier.
PAGE 33
OPERATION HUMIDIFIER START-UP PROCEDURE WARNING Line voltage may cause serious injury or death from electrical shock. Do not remove the power/ heater terminal cover until electrical power is disconnected. Only qualified electrical personnel should perform start-up procedure. After the system is properly installed and connected to both electrical and water supplies, it can be started.
PAGE 34
Water Supply • Turn water supply on; confirm drain valve is closed. Power • Turn the supply power on. – Verify that the On/Off indicator light illuminates along with the Fill indicator light. – Verify that the fill valve opens and adds water until the humidifier chamber is full, at which time the fill valve closes and the Fill indicator light turns off. – Verify that there are no leaks from the humidifier.
PAGE 35
MAINTENANCE The best way to determine how often the humidifier needs maintenance is to remove the steam chamber and inspect it after the first year of operation. Potable water carries a variety of minerals and other materials in a mix that varies from location to location. This variation in water quality, combined with the hours of operation and duty cycle, determines the frequency maintenance required. TO INSPECT AND SERVICE HUMIDIFIER: 1.
PAGE 36
D. If the steam chamber is cool to the touch, skip to Step 1E. If the chamber is hot, the water must be cooled down before draining and handling of the chamber. This can be accomplished by allowing sufficient time for the chamber to become cool enough to handle. As an alternative, if the drain piping is designed to handle intermittent drain water temperatures up to 212°F (100°C), the chamber may be cooled down by moving the lever located on the drain valve actuator to the manual open position.
PAGE 37
7. Re-install the chamber (see Figure 31 for drawing item numbers): • Using both hands, lift the chamber (Item 6 in drawing) up around the heaters until the threaded fasteners penetrate the cover flange. FIGURE 31 – Chamber with Open Fastener • Hold the chamber in place with one hand and pull the handle (Item 5) toward you and up onto the threaded fastener on the front bottom of the chamber. Make sure gasket is centered on chamber flange.
PAGE 38
OFF-SEASON SHUT DOWN PROCEDURE Perform steam chamber cleaning and humidifier maintenance at the end of the humidification season. • If softened water is used, the steam chamber may not need cleaning until after several humidification seasons. • IMPORTANT: The steam chamber should be removed after the first season of use to observe the amount of collected minerals in the chamber. • If there is more than ½” (13 mm) of minerals in the steam chamber after one season of use, clean the chamber annually.
PAGE 39
TROUBLESHOOTING Problem Possible Cause Action All indicator lights are blinking sequentially The humidiﬁer is in a forced • This is normal operation. DO NOT RESET POWER. The humidiﬁer will automatically resume cool-down period prior to making steam once it has cooled down, drained, and reﬁlled. a required automatic drain sequence. All indicator lights are off On/Off switch is off • Push On/Off switch on display panel. Display panel ribbon cable connection • Connect display panel ribbon cable.
PAGE 40
Problem Possible Cause Action The On/Off light on the display panel is blinking slowly (one blink per second) Mineral buildup or oxidation on probe rods • Remove probe assembly and clean probe rods; reset power to clear warning. Deterioration of probe rod assembly • Replace probe rod assembly. The On/Off light on the display panel is blinking rapidly (10 blinks per second) (illogical probe fault) Probe is wired incorrectly • Verify wiring; see wiring diagram.
PAGE 41
Problem Heater burnout Unit does not ﬁll with water Possible Cause Action Improper wiring • Verify proper voltage applied to heater. • Verify proper electrical connections. Water level is too low. • Replace probe assembly. Mineral buildup on heaters • If heaters are on continuously and therefore not expanding and contracting with on-off cycles to shed mineral buildup, the humidiﬁer may be undersized. Replace with a larger unit or add an additional humidiﬁer.
PAGE 42
Problem Humidity below desired level Possible Cause Action No humidity demand signal from humidistat • Low or no signal from humidistat. Check for proper wiring. • No demand signal by others. • If using Automatic Steam Humidiﬁer Control in the Automatic Mode and the temperature outside is greater than 60°F, the unit will not operate. If humidity is desired in those conditions, run the Control in Manual Mode. • If using Automatic Steam Humidiﬁer Control, verify that the Control is not in Test Mode.
PAGE 43
REPLACEMENT PARTS Note: See page 45 for a listing of replacement part numbers.
PAGE 44
FIGURE 36 – Humidifier Replacement Parts Note: Contact your Aprilaire distributor for availability of parts not listed above.
PAGE 45
TABLE 8 – Replacement Parts (refer to Figure 36) No. Part Number No. Description Steam Chamber with gasket, 1150 4560 28 Gasket, 2.5” O.D. X 1.9” I.D.
PAGE 46
APPENDIX – ABSORPTION DISTANCE CALCULATION Step 1: Enter the Design Conditions Percentage of Outdoor Air OA: Indoor Air Temperature TIndoor: Setpoint Indoor RH (for the leaving air) RHLeaving: Step 2: Find the ‘Moisture Content Factor’ for the leaving air (MLeaving) In Table 9, find the intersection of TIndoor and RHLeaving. The intersection of those two points is the ‘Moisture Content Factor’ for the leaving air.
PAGE 47
TABLE 9 – Moisture Content Factor TIndoor (°F) RHLeaving 5% 10% 15% 20% 25% 30% 35% 40% 45% 50% 55% 60% 60 0.22 0.44 0.75 0.89 1.25 1.49 1.74 1.98 2.24 2.50 2.72 2.99 65 0.29 0.58 0.86 1.16 1.36 1.75 2.04 2.32 2.63 2.92 3.20 3.50 68 0.32 0.65 0.98 1.30 1.63 1.96 2.28 2.60 2.84 3.26 3.56 3.91 69 0.33 0.67 1.00 1.33 1.68 2.00 2.35 2.66 3.01 3.35 3.66 4.03 70 0.34 0.68 1.02 1.37 1.72 2.05 2.40 2.74 3.10 3.44 3.75 4.12 71 0.36 0.
PAGE 48
WARRANTY Your Research Products Corporation Aprilaire Steam Humidifier Model 1150, 1160 or 1180 is expressly warranted for two (2) years from the date of installation to be free from defects.